Gryphon Siren Phono Preamplifier

The Ultimate Statement in Analog Reproduction | Available at Trimira Audio

The Gryphon Siren Flagship Phono Preamplifier is a statement-level analogue front end designed for uncompromising vinyl systems. Its two-chassis architecture separates the sensitive phono circuitry from the substantial external power supply, while a mechanically isolated internal platform is designed to minimise unwanted vibration reaching the low-level signal path.

The Siren combines Pure Class A dual-mono circuitry, zero global negative feedback, balanced phono inputs, extensive cartridge loading options, and digitally controlled analogue settings. With support for multiple tonearms or turntables, it is particularly well suited to sophisticated reference vinyl systems.

At Trimira Audio, we recommend the Siren for listeners seeking maximum flexibility in cartridge matching, extremely low noise, and a dedicated phono stage capable of forming the analogue heart of a statement two-channel system.

Key Features & Technological Innovations

Two-Chassis Mechanical & Electrical Isolation

The Siren separates the sensitive phono gain circuitry from its external power supply.

The main audio chassis incorporates a mechanically isolated internal platform, while the dedicated PSU houses the substantial power-supply circuitry.

This architecture is intended to minimise both electromagnetic interference and mechanical vibration reaching the low-level phono circuitry.

Pure Class A True Dual-Mono Architecture

Independent left- and right-channel gain stages operate in Pure Class A.

The dual-mono design is intended to maximise channel separation and preserve the delicate spatial information contained within analogue recordings.

Fully Balanced Four-Input Architecture

The Siren provides:

• 3 × pairs of balanced XLR inputs
• 1 × pair of RCA inputs

This makes it possible to connect multiple turntables or tonearm/cartridge combinations simultaneously.

Balanced XLR inputs are particularly useful where the cartridge and tonearm wiring support a genuinely balanced signal path.

Constrained-Layer Chassis Damping

The internal audio platform uses a constrained-layer structure incorporating Kerrock, bitumen, and steel.

The mechanically decoupled construction is designed to reduce vibration transfer into the sensitive phono circuitry.

4-Layer 70 µm Copper PCBs

The analogue circuitry uses four-layer circuit boards incorporating substantial copper traces.

The low-impedance PCB architecture is designed to support stable power delivery and controlled signal routing throughout the phono stage.

Extensive Cartridge Adjustment

The Siren provides comprehensive cartridge matching through its control interface.

MM and MC gain can be selected from:

• MM: +38 / +48 dB
• MC: +58 / +68 dB

MC resistance loading can be adjusted from 20 Ω to 1600 Ω, while capacitance can also be configured according to cartridge requirements.

Premium Low-Noise Components

The signal path incorporates selected components including:

• Mundorf MCap ZN capacitors
• Vishay low-inductance resistors
• ZETEX low-noise transistors

These components form part of the Siren's low-noise analogue architecture.

Touchscreen & Remote Control

A 4.3-inch TFT capacitive glass touchscreen provides access to cartridge and system configuration.

Settings can be adjusted without physically accessing internal components, making cartridge optimisation considerably more convenient.

Technical Specifications

Multi-Tonearm & Cartridge Integration

One of the Siren's major strengths is its extensive input and loading flexibility.

With three balanced inputs and one RCA input, a sophisticated vinyl system can accommodate multiple tonearms or turntables without repeatedly changing physical connections.

For example:

Turntable A → Balanced XLR Input

Turntable B → Balanced XLR Input

Turntable C → Balanced XLR Input

Turntable D → RCA Input

Each cartridge can then be configured according to its individual gain, loading, and capacitance requirements.

Cartridge Matching

Correct electrical loading is particularly important with low-output MC cartridges.

The Siren's 20–1600 Ω MC loading range allows precise matching across a wide variety of cartridge designs.

Trimira Audio can assist with:

• MM versus MC selection
• Gain configuration
• MC load resistance
• MM capacitance
• Cartridge output-level matching
• Balanced versus RCA connection
• Tonearm compatibility
• Grounding strategy
• RIAA configuration

Reference Vinyl System Architecture

A complete statement analogue system can be configured around the Siren:

Turntable → Tonearm / Cartridge → Gryphon Siren → Reference Preamplifier → Power Amplification → Loudspeakers

The Siren's multiple inputs make it particularly suitable for enthusiasts maintaining several analogue front ends.

Its balanced output can then feed a compatible balanced preamplifier or integrated amplification system.

Installation & Mechanical Considerations

The combined Siren system weighs approximately 68.4 kg, with the substantial power supply housed separately from the main audio chassis.

Careful equipment support and chassis positioning are therefore important.

Trimira Audio can advise on:

• Equipment-rack placement
• Main/PSU separation
• Cable routing
• Turntable positioning
• Mechanical isolation
• Cartridge setup
• Power requirements

Consult with the High-End Audio Specialists at Trimira Audio

The Gryphon Siren combines Pure Class A dual-mono circuitry, two-chassis isolation, four phono inputs, balanced signal architecture, adjustable MM/MC gain, 20–1600 Ω MC loading, precision RIAA equalisation, and extensive mechanical damping in a statement-level phono platform.

Trimira Audio can assist with complete Siren integration, including multi-tonearm configuration, cartridge loading, balanced connectivity, turntable setup, and analogue-system optimisation.

Contact the Trimira Audio reference vinyl specialists in Brisbane to arrange a private Siren audition or discuss a complete statement-level analogue system.